diff options
Diffstat (limited to 'arch/mips/lemote/lm2e/setup.c')
| -rw-r--r-- | arch/mips/lemote/lm2e/setup.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/arch/mips/lemote/lm2e/setup.c b/arch/mips/lemote/lm2e/setup.c new file mode 100644 index 00000000000..0e4d1fa572b --- /dev/null +++ b/arch/mips/lemote/lm2e/setup.c @@ -0,0 +1,134 @@ +/* + * BRIEF MODULE DESCRIPTION + * setup.c - board dependent boot routines + * + * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology + * Author: Fuxin Zhang, zhangfx@lemote.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#include <linux/bootmem.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/kernel.h> +#include <linux/mc146818rtc.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/tty.h> +#include <linux/types.h> + +#include <asm/bootinfo.h> +#include <asm/mc146818-time.h> +#include <asm/time.h> +#include <asm/wbflush.h> + +#ifdef CONFIG_VT +#include <linux/console.h> +#include <linux/screen_info.h> +#endif + +extern void mips_reboot_setup(void); + +#ifdef CONFIG_64BIT +#define PTR_PAD(p) ((0xffffffff00000000)|((unsigned long long)(p))) +#else +#define PTR_PAD(p) (p) +#endif + +unsigned long cpu_clock; +unsigned long bus_clock; +unsigned int memsize; +unsigned int highmemsize = 0; + +void __init plat_timer_setup(struct irqaction *irq) +{ + setup_irq(MIPS_CPU_IRQ_BASE + 7, irq); +} + +static void __init loongson2e_time_init(void) +{ + /* setup mips r4k timer */ + mips_hpt_frequency = cpu_clock / 2; +} + +static unsigned long __init mips_rtc_get_time(void) +{ + return mc146818_get_cmos_time(); +} + +void (*__wbflush)(void); +EXPORT_SYMBOL(__wbflush); + +static void wbflush_loongson2e(void) +{ + asm(".set\tpush\n\t" + ".set\tnoreorder\n\t" + ".set mips3\n\t" + "sync\n\t" + "nop\n\t" + ".set\tpop\n\t" + ".set mips0\n\t"); +} + +void __init plat_mem_setup(void) +{ + set_io_port_base(PTR_PAD(0xbfd00000)); + + mips_reboot_setup(); + + board_time_init = loongson2e_time_init; + rtc_mips_get_time = mips_rtc_get_time; + + __wbflush = wbflush_loongson2e; + + add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM); +#ifdef CONFIG_64BIT + if (highmemsize > 0) { + add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM); + } +#endif + +#ifdef CONFIG_VT +#if defined(CONFIG_VGA_CONSOLE) + conswitchp = &vga_con; + + screen_info = (struct screen_info) { + 0, 25, /* orig-x, orig-y */ + 0, /* unused */ + 0, /* orig-video-page */ + 0, /* orig-video-mode */ + 80, /* orig-video-cols */ + 0, 0, 0, /* ega_ax, ega_bx, ega_cx */ + 25, /* orig-video-lines */ + VIDEO_TYPE_VGAC, /* orig-video-isVGA */ + 16 /* orig-video-points */ + }; +#elif defined(CONFIG_DUMMY_CONSOLE) + conswitchp = &dummy_con; +#endif +#endif + +} |